Surface configuration of a vehicle under body structure



FIG. 1 is a perspective view of a surface configuration of a vehicle under body structure according to my novel design; and,

FIG. 2 is a front view of the surface configuration of a vehicle under body structure according to my novel design.

The broken lines included in the drawings depict environment and are not part of the claimed design. 

The ornamental design for a surface configuration of a vehicle under body structure, as shown and described. 